By Monica from PA on March 23, 2016
Can this Dura-Vent cap be used with Hart & Cooley 4" b-vent gas piping?
By Chris C. on March 23, 2016
By Bruce from Cheyenne, WY on April 18, 2014
What size high wind cap do I need for a 4" type B furnace exhaust pipe?
By Collin C. - NFI Master Hearth Professional on April 18, 2014
Answer:This would be the correct cap to use, if your pipe has a 4 inch inner diameter. Many brands of B-vent parts are model specific and this is the case with the Dura-Vent brand. The attachment hems are specific to the brand and will not readily interchange.
By rob radosevich from abq. n.m. on August 29, 2012
Do you make an 8 inch high wind furnace vent rain cap? Do you know who does? Could I modify mine with some mesh to make it more windproof?
By Collin C. - NFI Master Hearth Professional on August 30, 2012
Answer:Most high wind caps utilize vertical baffles that overlap one another to prevent down drafting. I do not believe that adding mesh around the cap would make much of a difference.
However, another option is to surround the cap in a ring of sheet metal, which would extend about 1 inch above and below the louvers/slats of the cap. You would then need to attach the ring with metal legs. Ideally, the ring would have about 3-4 inches of clearance from the edges of the cap.
We also do carry a universal 8" cap, but it is a standard design that only has average resistance to wind.
By Ray Johnson from Gulfport, MS on November 11, 2012
I have been looking to replace my current rain cap, because it is letting water into my exhaust pipe. I'm having a problem finding the right cap because my O.D. measurement is 4.55" and the pipe I need to attach it to has grooves that the cap slides into, then you turn it to lock on to the existing pipe. Can you help me find what I need to replace my existing cap?
By Collin C. - NFI Master Hearth Professional on November 12, 2012
Given your outside measurements, it is likely that you have a 4 inch I.D. B-vent pipe. However, it will be necessary to measure the inner sleeve to be certain. If the pipe does prove to be 4 inches, we carry the Metal-Fab Type B Round Universal Chimney Vent Cap
, which is a push-in style and can work for virtually all applications.
By Martin from PA on January 25, 2014
Is it okay to use this cap on the wall with a horizontal application?
By Collin C. - NFI Master Hearth Professional on January 27, 2014
Answer:B-vent appliances are not usually able to be terminated horizontally. As such, horizontal vent caps are not readily available and this vertical cap would be the only choice. It is important to note that most manufacturers of appliances that vent horizontally have a specific cap that they offer.
By JEFF DE from kremmling, colorado on December 26, 2011
I am having problems with my old Seigler furnace. The pilot will randomly go out after two or three heat cycles. I have adjusted and replaced many of the components, and am starting to think i may have the wrong vent cap on. I have taken measurments and all building code distances are right. I live in a very cold climate, high in the rockies, with high wind at times. Can you recommend the type of vent cap i should be using?
By Collin C. - NFI Master Hearth Professional on December 27, 2011
Answer:It does indeed sound like you are encountering an issue with back draft that is causing the pilot to extinguish or a possible fluctuation in gas pressure that causes the pilot to go out on shutdown or start up.
If the pilot goes out randomly, it is more likely a draft issue and a high wind cap such as this model could solve the issue. It will be necessary to verify the brand of piping that is used to guarantee proper fit.
If the pilot goes out preceding or following a heat cycle, a gas pressure deficit may be the problem. Pressure that is diverted to the main burner can cause enough of a fluctuation for the pilot to go out, if the pressure is far enough out of spec.
By Allen from Greenup, Illinois on February 5, 2014
What is the dimension of the collar on this item? Will it fit on any type B 4 inch double wall pipe as long as self tapping screws are used?
By Dawn H. on February 5, 2014
Answer:The only dimensions available are the 4" diameter dimension. This cap is designed to lock into position with Dura-Vent Type B Gas Vent pipes only and cannot be used with any other type or brand of pipe.